关于字符串判空问题

[GoogleCodeExporter]

SystemLogService.java
LogInfoService.hbm.xml

        WHERE
            (? = '' or log_info.type = ?)
        AND log_info.create_time BETWEEN ? AND date_add(?, 
interval 1 day)
        AND UPPER(log_info.caption) like UPPER(?)
        ORDER BY log_info.create_time desc, log_info.caption asc

第一个问号，你传入的参数是空字符串还是null？

如果是null，是不是应该改成【? IS NULL OR LOG_INFO.TYPE = ?】呢？

调查一下，把结果放到comments里

Original issue reported on code.google.com by rcom10002 on 20 Aug 2009 at 9:49

[GoogleCodeExporter]

是空字符串，因为我加了个条件是全部传参时，传的是空字��
�串

Original comment by songjie8...@gmail.com on 21 Aug 2009 at 6:00

• Changed state: Fixed